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Watson Explorer Deep Analytics Edition, oneWEX: Debugging Python API with Swagger sample client

Troubleshooting


Problem

The oneWEX Swagger UI provides a downloadable sample Python client:
image-20190729105736-1
The REST API is defined  in the Swagger file (https://<host>/docs/wex-public-apis.yaml)
A Dataset created using the API, causes a 500 NullPointerException (NPE) when queried via REST API.

Symptom

HTML error response returned by REST API
Exception thrown by application class 'com.ibm.ejs.container.util.ExceptionUtil.EJBException:399'
javax.ejb.EJBException: See nested exception; nested exception is: java.lang.NullPointerException
at com.ibm.ejs.container.util.ExceptionUtil.EJBException(ExceptionUtil.java:399)
at [internal classes]
at com.ibm.es.ama.rapi.EJSLocalNSLAMARequestHandler_460fecb2.handle(EJSLocalNSLAMARequestHandler_460fecb2.java)
at com.ibm.es.ama.rapi.RAPIServlet.service(RAPIServlet.java:63)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at [internal classes]
at com.ibm.es.ama.usermgmt.filter.CollectionLevelSecurityFilter.doFilter(CollectionLevelSecurityFilter.java:195)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:201)
at [internal classes]
at com.ibm.es.ama.usermgmt.filter.ImpersonateFilter.doFilter(ImpersonateFilter.java:156)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:201)
at [internal classes]
at com.ibm.es.ama.usermgmt.filter.CollectionStateFilter.doFilter(CollectionStateFilter.java:251)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:201)
at [internal classes]
Caused by: java.lang.NullPointerException:
at java.util.HashMap.merge(HashMap.java:1236)
at java.util.stream.Collectors.lambda$toMap$58(Collectors.java:1331)
at java.util.stream.Collectors$$Lambda$82.00000000AC0E9BD0.accept(Unknown Source)
at java.util.stream.ReduceOps$3ReducingSink.accept(ReduceOps.java:180)
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:186)
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1393)
at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:591)
at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:281)
at java.util.TreeMap$ValueSpliterator.forEachRemaining(TreeMap.java:2908)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:523)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:513)
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:719)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:245)
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:510)
at com.ibm.es.ama.datamodel.manager.CollectionLabelMonitor$CollectionLabels.parse(CollectionLabelMonitor.java:87)
at com.ibm.es.ama.datamodel.manager.CollectionLabelMonitor.get(CollectionLabelMonitor.java:49)
at com.ibm.es.ama.rapi.AMARequestHandler.assignFieldLabels(AMARequestHandler.java:343)
at com.ibm.es.ama.rapi.AMARequestHandler.handle(AMARequestHandler.java:206)
... 13 more

Document Location

Worldwide

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SS8NLW","label":"IBM Watson Explorer"},"Component":"","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF033","label":"Windows"}],"Version":"All Versions","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}}]

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Document Information

Modified date:
31 July 2019

UID

ibm10961350

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